Internal-combustion engine



J. E.' DE BAUN INTERNAL COMBUSTION ENGINE Filed June 21, 1927 lNvENTORBY c/naun iw .ATTORNEW 55 to as many cylinders,'pistons and the likeasPatented Oct. 16, 1928.

VUNITED STATES PATENT OFFICE.Y

JOHN E. DE ;BAim, or sAnnLE EIVEE, NEW JERSEY.

' INTERNAL-COMBUSTION 'ENGINE Application ined June 2i, 1927. sriai Nb.200,410.

This invention relatos to an improvement in an internal combustionengine and has for its object to provide such a type of engine in whicha minimum of moving parts will be utilized, thus greatly simplifyingconstruction and the likelihood of wear orr breakage. y

A further object of this invention is to provide a novel form Vofconstruction in which many of the important parts found in internalcombustion engines at the present date, suchas chains, gears and theAlike arev as may hereinafter appear, in view, I have devisedr theembodiment of my invention disclosed in the accompanying drawing and'more particularly pointed out in the claims appended hereto.

Reference is to be had tothe accompanying drawing, forming a parthereof, in which, f i

4Figure 1 is a vertical sectional view or my improved engine;

Figure 2is a sectional view at right angles to-that shown in Figure 1,suoli View being taken on the line 2-2 of Figure 1', looking in thedirection `of the arrows;

Figure 3 is a sectional view on theline 3--3 of Figure 1, looking inthedirection of the arrows; and f Figure l is a sectional view on the line1 -4150i Figure 1, looking inthe direction of the arrows. y, Throughoutthe various; views of the drawings, similar reference charactersdesignate similar parts.`

In the embodime "t of my-.invention disclosed intheaccompanying drawing,I show my improved engine as being of the one cylinder type It willlbeunderstood however, that a multi-cylinder engine may be readily"constructed'by a duplication ofthe paitsand arrangements to behereinafter described. Y n Y Itwill therefore be understood that inreferring to the cylinder, `piston and other parts, this shall be.interpreted as applying may be employed in various types oit-en gines.

In the accompany drawing, 1 indicates an inlet manifold, which may besupported in any suitable frame or casing and which mayy be connected toa carburetor or other mixing device for supplying an explosive mixturethrough the internal passage 2 of the manifold l. This manifold 1 actsas a support for a stationary piston 3, said piston being connected tothemanifold 1, by means ofa t-ubular arm 4. This tubular arrn/i may,.ifVdesired,'be formed integrally with the piston 3 or'it may be a separatepiece bolted or otherwise secured thereto. Said armliL is provided witha bearing 5 which extends around the manifold 1 so that a pivotalconnection is established between said "manifold 1 and the piston 3. Thearm iis also provided with a continuous internal passage or Y.

bore 6, which has its upper end locatedin registration with an opening 7so that the explosive mixture fed lfrom a carburetor through the passage2 in the manifold l will pass through the opening 7 and down through thebore 6 and into the cylinder of the engine as willbe hereinafterexplained. TheV lower end of the supporting arm 4 is normally closed bya valve 8 which is held upon its seat by a spring 9 until opened bysuction to permit the entrance of explosive mixture into the cylinder10, as will be hereinafter explained.

The cylinder 10 just mentioned is `arranged to reciprocate relatively to,the stationary'or fixed piston v3, this action being just the reverseof the ordinary internal combustion engine, wherein the cylinder isusually stationary and the piston reciprocates therein.

The piston 3is providedwith the usual packing rings 11 which bearagainst the inner wallsof the cylinder 10 in the conventional manner andpre-vent leakage.

i The piston 3 is provided with a pair or inlet valves `12 which arenormally heldin closed position bysprings 13. These valves are intendedto be opened at the propery time to permit explosive mixture to enterbelow the piston 3 and thereaftery be compressed by an upward Amovementofthe cylinder 10. their respective seats, tappet means 14-is provided,such means consisting of a cylindrical member having a central boss15,and a circumferential flange `16.

Said tappet member 14 is carried within and moved `with For raising thevalves 12 'from lio i' be interposed between these two flanges so ttl .pipe 25, provide a number of spaced bale the cylinder 10. on itsmovement relatve to the piston 3. rlhe tappet member'lel is northebossll and which bear against the outer face Yo't the arm or sleeve Lland prevent leakage of explosive mixture between the part la and thetaceof the sleeve 1l. l

lt will be understood 'tromthe foregoing that when the cylinder descendsto substantially the pointed indicated in Figure 2, the part 14 willcome in 'Contact with the upper endsot the stems on the valves 12 andwill by a resilient, yet tirin pressure, force said valves from theirseats and peinit. the entrance of explosive mixture to points below thepiston The cylinder 10 is provided with cooling tins 22 and at its lowerend it is provided with a circumferential ilange 23, against which restsa llange 2st, located on the upper end of a tubular exhaust pipe 25.Said flange 2.4 may bebolted or otherwise secured to the flange 23, andaV suitable gasket may that ya tight joint will result.

upper end or entrance with a valve seat intended to receive an exhaustvalve 26 which is normally held on its seat or in which bears against acrossing 28 located in the pipe 25. The opposite end of said springbears against a pin 29 extending through the valve stem 30.

y The outer surface of the pipe 25 is provided with cooling tins 31 andinside of said plates 32 for quieting the engine exhaust.

Adjacent to the lower end ot the pipe 25, is providedr a plurality ofopenings or holes 33 to provide the exit of exhaust gases in thevordinary way. The lower'end oi' the pipe 25 is provided with'a bearing84 which embraces the crank part of a crank shatt 36. lt will beunderstood that this crank sha-ft may be supported at its ends in theconventional kway upon suitable bearings which are not `shown and any ofthe well known types ot' oil feed or lubrication may be employed.

. At is shown a cam which islprovided on a part-oi the crank shaft sothat at the proper time, said cam will come ink contact with` the lowerend of the valvestem 30 and raise said exhaust valve 26 from its Thetubular member 25, vwhich is in the. nature of an exhaust pipe isprovided at itsA seatto'permit the' exhaust gases to enter into the pipe30 and pass out` of the same through the openings 33. In order to permitfree operation of the cam member 37, the bearing Blfon the end or" thepipe 25 is slotted or-split as at 38.

From the foregoing, the manner in which my improved engine operates willbe readily understood. As was heretofore explained, the explosivemixture passes from a carburetor into the passage 2 and into the bore 6of thek sleeve 4. At this point, the cylinder moving upward createssutlicient suction to cause the valve 8 to be raised from its seat withthe result that explosive mixture passes through the end of the bore 6and into the cylinder above the` piston '3. Vhen the downward movementof the cylinder takes place, 4the tappet member 14 comes into contactwith the upper ends of the valve stems l2and forces these valves fromtheinseats then movesupwardly, the valves 12 thenA closing and theexplosive mixture is compressed between the piston 3 andthe lower end otthe cylinder 10; and exploded by means of the spark plug 39, whichreceives its spark from any suitable source ot; electric current. Thecylinder thereupon begins' its upwardr movement, the exhaust valve `26being openedby the cam 37 `to permit the escape of exhaust` gasesthrough the exhaust pipe 25. n

It will be seen from the design of engine disclosed that a minimum ofparts is used, the exhaust pipe 25 being utilized asa connecting rrodforthe reciprocating cylind-er 25. It will also be seen that the parts areso connected and assembled that the same may be dismounted readily forcleaning and renewing andv that the yengine is readily cooled since thecylinder rather than the pistonis movable and*` that the use of va*rious gears, Vdrive chains and the` like commonly employed in internalcombustion engines is obviated.' i

Having described invention, it is obvious that the same is not to 'berestricted thereto', but is broad enoughL ton coverl all structures'coming within the scope of the annexed claims. f

that l claim is y f kl. In 'an internal combustion engine, a.tixed'p-iston, a cylinder surrounding the same and adapted ktoreciprocate relative thereto,

one `embodiment of; my

a crank shaft and an extension on said cyl- ,p inder connected tor saidcrank-shaft, saidV exhaust passage.

extension being tubular yand constituting an 2. 1n Van internalcombustion engine, a

CFI

movable relatively to the same, av crank shaft,

the piston and movable relatively t0 thel same, an exhaust pipe carriedby said cylinder, a crank shaft,and a pivotal connection between saidcrank shaft and the exhaust pipe. i

4. In an internal combustion engine, an inlet manifold, a fixed pistonsupported therefrom, an inlet pipe connecting said manifold with thepiston, a reciprocating cylinder movable relatively to the piston, anexhaust pipe carried by the cylinder, a crank shaft pivotally connectedto one end of said exhaust pipe, an exhaust valve at the entrance to theexhaust pipe, an inlet valve on the piston, and means carried by themovable cylinder for opening said inlet valve.

5. ln an internal combustion engine, an inlet manifold, a pistonsupported therefrom, a tubular inlet pipe constituting a connectionbetween said piston and manifold, a cylinder movable relatively to thepiston, an exhaust pipe on said cylinder, a crank shaft pivotallyconnected to said exhaust pipe, an exhaust valve at the entranceto saidexhaust pipe, and means on the crank shaft for opening said valve. L

6. In an internal combustion engine, a reciprocating cylinder, apivotally supported stationary piston therein, an inlet pipe connectedtosaid piston and adapted to support the same Within the cylinder, a crankshaft, and a fixed tubular extension on said cylinderpivotally connectedto said crank shaft.

7. In an internal combustion engine, a reciprocating cylinder, a pistonsupported Within the same, an inlet pipe extending into one end of saidcylinder and connected t0 the piston, an exhaust pipe connected to theother end of the cylinder and forming a continuation of the saine, acrank shaft, and a pivotal connection between the end of said exhaustpipe and the crank shaft.

8. In an internal combustion engine, a fixed piston, a cylinder adaptedto recipr0- cate on the same, inlet valves in said piston, means carriedby the cylinder foroperating said valves, an exhaust pipe secured to andextending from one end of said cylinder, a crank shaft, a pivotalconnection between the end of said pipe'and said crank shaft, an exhaustvalve Within the cylinder and at the entrance to the exhaust pipe, andmeans carried by the crank shaft for operating said exhaust valve.

Signed at the city, county and State of New York, this 20th day of June,1927.

JOHN n. DE BAUN.

